“fire protection level”的概念、定义、翻译、参考文献-科学参考

单词	fire protection level
释义	fire protection level Encyclopedia 工学〔火灾报警与消防连动自动化系统〕释 fire protection level火灾保护对象等级按照保护对象的使用性质、火灾危险性、疏散和扑救难度等因素，对保护对象进行的分级管理。
随便看	matrix of coefficients matrix of connective tissue matrix of dimensions m×n matrix of dripping pills matrix of matrices matrix of meteorite matrix of periods matrix of relations matrix of solutions matrix of sum squares between matrix of sum squares within classes matrix of the coefficients matrix of ties matrix of total requirement coefficient matrix of transition probabilities matrix of -type matrix of type matrix operation matrix operator matrix optics matrix ordering matrix organization matrix over a field matrix over a ring matrix Pade approximants

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